Browsing is a valuable way to learn about birds, however it is a brute force approach and not designed for identification.
A more sophisticated approach to finding a bird with specific field marks is to use the Step by Step Search.
You can also try the Wizard to find a bird, which uses a question and answer approach, but again it does not give you the flexibility of the Step by Step Search.

Black-capped Vireo: Small vireo, olive-green upperparts, black hood, white spectacles interrupted with black above the eye, white underparts with olive-yellow flanks. Wings are dark with two pale bars. Iris is red-brown to red. It has been listed as an endangered species since 1987.

Bachman's Warbler: Small warbler, olive-green upperparts, yellow forehead, throat, underparts, faint white eye-ring, black crown, bib. It was last seen in the United States in 1962, when it was recorded near Charlestown, South Carolina. In Cuba a wintering female was spotted in 1981.

Cassin's Vireo: Small vireo, olive-gray upperparts, white underparts, pale yellow flanks. Head is gray with white eye-ring that extends to brow. Wings are dark with two white bars. Until the 1990s was classified as the Solitary Vireo, along with the Blue-headed and Plumbeous Vireos.

Rufous-capped Warbler: Small warbler with olive-green upperparts, bright yellow throat and upper breast, and white belly. Head has rufous crown and cheek patch, and white eyebrow. Bill is black and the tail is long and olive-gray. It likes to hide in dense undergrowth.

Philadelphia Vireo: Medium vireo with olive-green upperparts and yellow-washed to yellow underparts. The head has a gray cap, dark eyes, and white-bordered black eye-line. Wings are olive-green with very faint wing-bars. Undertail coverts yellow. First discovered near Philadelphia in 1842.

Swainson's Warbler: Medium-sized warbler with olive-brown upperparts and pale gray underparts. Head has brown cap, white eyebrows, and dark eye-lines. Wings are plain olive-brown. It hides in dense thickets, where it forages on the ground looking for insects, spiders, and caterpillars.

Golden-crowned Kinglet: Very small, warbler-like bird, olive-green to gray upperparts and pale breast. Head has bright orange crown patch bordered with yellow and black, white eyebrows and black bill. Tail is short and wings have two bars. Female similar but lacks orange in the yellow crown. Weak fluttering flight on shallow wing beats.

Hawaiian Creeper: This small songbird has olive-green upperparts and black-gray on the lores and around the eyes. It is gray on the throat, and the rest of the underparts are green-yellow. It has a buff-gray, conical bill with slightly decurved tip. It uses its short, sharp beak to probe bark for insects residing underneath. They have a direct undulating flight. Sexes are similar.

Akekee: This is a small, mostly olive songbird with yellow on the crown, cheeks, throat and underparts. It has a black mask around the eye and a bluish bill with a slightly decurved culmen. The bill works like scissors to cut open buds in search of insects to eat. It also feeds on the nectar of some trees. The sexes are similar, but the males are slightly brighter. It has an undulating flight.

Oahu Amakihi: This small honeycreeper has yellow-green upperparts, yellow throat, breast, and belly, black lores, decurved gray bill and gray legs and feet. Females are gray-green above and yellow-white below with two pale wing-bars. Diet includes nectar, insects and spiders. Strong and direct flight in canopy, may undulate over long distances.

Eastern Yellow Wagtail (Palau): Small wagtail (tschutschensis), with olive-green upperparts and yellow underparts with brown spots on sides of breast. Throat is white with faint brown necklace. Gray head has black ear patches and distinct white eyebrows. Wings are dark with two white bars. Tail is very long, black with white edges and wags constantly. Sexes are similar. Juvenile has buff underparts.

Kauai Amakihi: This small honeycreeper is olive-green above and pale yellow to creamy gray below. Brown lores, pale yellow supercilium, chin and throat, and gray wings and tail. Gray decurved bill, legs and feet. Feeds on insects and nectar. Strong and direct flight in canopy, may undulate over long distances. Sexes are similar. One of the least specialized and most adaptable Hawaiian species.

Black-faced Grassquit: Small sparrow, very dark olive-gray with black head and breast. Black bill, legs and feet. Very common in the West Indies. Feeds mainly on seeds, especially of grasses and weeds. The flight is weak, bouncy and fluttering. Alternates rapid wing beats with pulling wings to body.

Gray-crowned Yellowthroat: Large warbler rarly seen in the U.S. Upperparts are olive-brown to olive-gray with a grayer head, distinctive black mark between bill and eyes, and broken white eye-ring. The upper mandible is black and lower mandible is pink. Underparts are yellow with gray wash on sides.

Yellow-faced Grassquit: This tiny finch has olive upperparts, pale olive underparts, black face, breast and upper belly, yellow eyebrow and throat patch, and a conical, sharply pointed bill. Forages on the ground for seeds; also feeds on berries, small fruits and insects. It has a weak fluttering flight, alternating rapid wing beats with wings pulled to the sides. Sexes are similar.

Hawaii Amakihi: AKA the Common Amakihi. It has olive to yellow-green upperparts and yellow underparts. The lores are black and the bill is black and decurved. The wings and tail are olive-gray and the legs and feet are gray. Flight is strong and direct in the forest canopy; may undulate over long distances. It feeds on nectar, spiders and insects. The female tends to be darker than the male.

Yellow-fronted Canary: Native to sub-Saharan Africa, this small finch has olive-gray upperparts and bright yellow underparts and rump, a gray crown and nape, yellow eyebrow and cheek, a dark malar stripe and gray legs and feet. It feeds on seeds and insects. Bounding flight, alternates flapping with gliding. Sexes are similar, female is duller.

Japanese White-eye: This small active songbird has an olive-green head, neck and back. Wings and upper tail feathers are blackish-brown outlined with green. It has a yellow throat, gray breast and flanks with a buff wash, white belly and eye ring, black bill, legs and feet. It feeds mostly on insects and nectar. Undulates, actively flits and swoops among foliage. Sexes similar, female is duller.

Connecticut Warbler: Large ground-walking warbler, olive-gray upperparts, dull yellow underparts. Head has a slate-gray hood and bold white eye-ring. It was named for the state where it was first discovered, where it is an uncommon migrant. Sometimes called Swamp Warbler.

Hooded Warbler: Medium warbler, olive-green upperparts, bright yellow underparts. Head has black hood, and yellow face. The eyes are large and dark and the tail is often spread, displaying large white spots. Bill is black, legs and feet are pink. Makes short, direct flights on rapidly beating wings.

Kentucky Warbler: Medium, ground-dwelling warbler with bright olive-green upperparts and yellow underparts. Head has black mask and sideburns and thick yellow eyebrows. Bill is black, legs and feet are pink. Secretive, heard rather than seen. It is named for the state where it was first discovered.

Pine Warbler: Medium warbler with plain olive-gray upperparts, yellow throat and breast, blurry-streaked sides, and white belly and undertail coverts. Wings are gray with two white bars. It is the only warbler that eats large quantities of seeds, usually pine. One of the earliest breeding warblers.

Worm-eating Warbler: Medium-sized, ground nesting warbler with olive-gray upperparts and pale yellow underparts. Yellow head has black crown stripes and eye-lines. As its name suggests, it eats a steady diet of moth caterpillars and worms. It usually forages in understory vegetation and dead leaves.

Cape May Warbler: Small warbler, olive-yellow upperparts, thick, black streaks on yellow underparts. Bright yellow face, chestnut-brown ear patch, black crown. Wings are dark with large white patches. First collected in Cape May, New Jersey in 1811 and not seen again in that area for over 100 years.

Orange-crowned Warbler: Small warbler with olive-green upperparts and faintly streaked, yellow underparts. The head has inconspicuous orange crown, broken eye-ring, and faint eye-line. Though it lives and nests in dense foliage close to the ground, the male perches at the tops of tall trees to sing.

Wilson's Warbler: Small warbler with olive-green upperparts, bright yellow face and underparts, distinct black cap. It has a long, olive-brown tail which it moves up and down, or in a circular fashion, as it searches for food. It is more common in the West than in the East. Legs and feet are pink.

Yellow-throated Vireo: Large vireo, olive-gray upperparts, gray rump. Throat and breast are bright yellow, belly is white. Eyes are dark. Spectacles are yellow. Wings are dark with two white bars. Legs and feet are black. It is the most colorful member of its family in North America.

White-eyed Vireo: Medium-sized, secretive vireo with olive-green upperparts, and white underparts with yellow sides and flanks. Spectacles are pale yellow and iris is white. Wings are dark with two white bars. Legs and feet are gray. Flight is fast and direct on short, rounded wings.

Red-eyed Vireo: Medium vireo with olive-brown upperparts and white underparts. Head has a gray cap, white eyebrow, black eyestripe, and red eyes. Blue-gray legs and feet. Alternates short glides with series of rapid wingbeats. May hover briefly to pick berries or insects from foliage.

Yellow-bellied Flycatcher: Small flycatcher with olive-green upperparts, yellow underparts, and olive-green wash on breast. Spectacles are pale yellow. The wings are dark with two white bars. Feeds on a variety of insects and spiders. Weak fluttering flight with shallow rapid wing beats.

Mourning Warbler: Medium-sized warbler with an olive-green back, wings, tail, and gray hood. The underparts are yellow and the upper breast is black. It's named for the way its dark breast and hood resemble a person in mourning. It is one of the latest spring migrants of all North American warblers.

Tennessee Warbler: Small warbler with olive-green upperparts, white underparts, and olive-gray washed sides. Darker head has white eyebrows and dark eyestripes. Wings are plain gray. Tail is short. It spends the summers in Canada and is only found in Tennessee during migration. Eats mostly insects.

MacGillivray's Warbler: Medium-sized warbler with olive-green upperparts and yellow underparts. White eye-ring is broken and slate gray hood extends to upper breast where it darkens to black. It forages for insects on or close to the ground. As it hops, it often flicks its tail from side to side.

Yellow Warbler: Small warbler with olive-yellow upperparts and bright yellow underparts with rust-brown streaks on breast, sides. Wings are dark. Tail is dark with yellow-tinged edges. Female lacks streaks on breast. The Golden group has an olive-brown crown and is found in the Florida Keys and West Indies. The Mangrove group has a rufous hood and is found in Central America and northern South America. Has a wider range than any other North American warbler. Eats insects, larvae, and some fruit.

Yellow-breasted Chat: The largest North American warbler. Has olive-green to olive-gray upperparts, brilliant yellow throat, breast. Belly and undertail are white. Eyes have white spectacles and dark eye patches. Bill is heavy and dark. Wings and tail are olive-green. Bill, legs, and feet are black.